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1Tegra124 SOCTHERM thermal management system
2
3The SOCTHERM IP block contains thermal sensors, support for polled
4or interrupt-based thermal monitoring, CPU and GPU throttling based
5on temperature trip points, and handling external overcurrent
6notifications. It is also used to manage emergency shutdown in an
7overheating situation.
8
9Required properties :
10- compatible : "nvidia,tegra124-soctherm".
11- reg : Should contain 1 entry:
12 - SOCTHERM register set
13- interrupts : Defines the interrupt used by SOCTHERM
14- clocks : Must contain an entry for each entry in clock-names.
15 See ../clocks/clock-bindings.txt for details.
16- clock-names : Must include the following entries:
17 - tsensor
18 - soctherm
19- resets : Must contain an entry for each entry in reset-names.
20 See ../reset/reset.txt for details.
21- reset-names : Must include the following entries:
22 - soctherm
23- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description
24 of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a
25 list of valid values when referring to thermal sensors.
26
27
28Example :
29
30 soctherm@0,700e2000 {
31 compatible = "nvidia,tegra124-soctherm";
32 reg = <0x0 0x700e2000 0x0 0x1000>;
33 interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
34 clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
35 <&tegra_car TEGRA124_CLK_SOC_THERM>;
36 clock-names = "tsensor", "soctherm";
37 resets = <&tegra_car 78>;
38 reset-names = "soctherm";
39
40 #thermal-sensor-cells = <1>;
41 };
42
43Example: referring to thermal sensors :
44
45 thermal-zones {
46 cpu {
47 polling-delay-passive = <1000>;
48 polling-delay = <1000>;
49
50 thermal-sensors =
51 <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
52 };
53 };